System and method for diagnosing home appliance
First Claim
1. A diagnostic system for a home appliance, comprising:
- at least one home appliance that outputs a sound signal including product information; and
a diagnostic server that receives the sound signal from the home appliance and diagnoses a faulty operation of the home appliance using the received sound signal, wherein the diagnostic server extracts a plurality of preamble candidates from the sound signal, detects a preamble for identifying the product information from the plurality of preamble candidates, extracts product information contained in the sound signal, and thus diagnoses a current status of the home appliance, a faulty operation, and a cause of the faulty operation, wherein the diagnostic server includes;
a signal detector that performs matching and weighting processes between the plurality of preamble candidates so as to detect the preamble from the plurality of preamble candidates, and extracts the product information using the preamble; and
a diagnostic device that diagnoses a current status of the home appliance, a faulty operation, and a cause of the faulty operation by analyzing the product information, wherein the signal detector extracts a first plurality of preamble candidates of a first time to form a first preamble candidate group, extracts a second plurality of preamble candidates of a second time according to not only data including the product information but also a preamble size to form a second preamble candidate group, and matches each preamble candidate of the first preamble candidate group to each preamble candidate of the second preamble candidate group on a one to one basis.
1 Assignment
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Accused Products
Abstract
A system and method for diagnosing a home appliance are disclosed. The home appliance outputs product information as a predetermined sound signal, and transmits the sound signal to a service center of a remote site over a communication network, such that a service technician of the service center can easily check a current status of the home appliance. When a diagnostic server of the service center analyzes the sound signal of the home appliance, it selects a plurality of preamble candidates and can effectively and correctly detect data using weights, so that it can quickly diagnose a faulty operation of the home appliance. An erroneous data analysis and its associated erroneous diagnosis are prevented, so that the diagnostic system provides a service for more correctly diagnosing a faulty operation of the home appliance and also increases user satisfaction and reliability of the home appliance.
60 Citations
11 Claims
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1. A diagnostic system for a home appliance, comprising:
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at least one home appliance that outputs a sound signal including product information; and a diagnostic server that receives the sound signal from the home appliance and diagnoses a faulty operation of the home appliance using the received sound signal, wherein the diagnostic server extracts a plurality of preamble candidates from the sound signal, detects a preamble for identifying the product information from the plurality of preamble candidates, extracts product information contained in the sound signal, and thus diagnoses a current status of the home appliance, a faulty operation, and a cause of the faulty operation, wherein the diagnostic server includes; a signal detector that performs matching and weighting processes between the plurality of preamble candidates so as to detect the preamble from the plurality of preamble candidates, and extracts the product information using the preamble; and a diagnostic device that diagnoses a current status of the home appliance, a faulty operation, and a cause of the faulty operation by analyzing the product information, wherein the signal detector extracts a first plurality of preamble candidates of a first time to form a first preamble candidate group, extracts a second plurality of preamble candidates of a second time according to not only data including the product information but also a preamble size to form a second preamble candidate group, and matches each preamble candidate of the first preamble candidate group to each preamble candidate of the second preamble candidate group on a one to one basis. - View Dependent Claims (2, 3, 4, 5, 9, 10, 11)
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6. A diagnostic method for use in a diagnostic system of a home appliance, the diagnostic method comprising:
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upon receiving in a diagnostic server a sound signal from a home appliance, extracting a plurality of preamble candidates from the sound signal; detecting via the diagnostic server a preamble from the plurality of preamble candidates by performing matching and weighting processes between the plurality of preamble candidates; detecting via the diagnostic server data including product information from the sound signal on the basis of the preamble; and diagnosing via the diagnostic server the home appliance by analyzing the product information, wherein the detecting of the preamble includes; extracting a first plurality of preamble candidates of a first time and a second plurality of preamble candidates of a second time; and matching the plurality of first preamble candidates to the plurality of second preamble candidates on a one to one basis. - View Dependent Claims (7, 8)
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Specification